CN211539791U - Differential gear-extruding device - Google Patents
Differential gear-extruding device Download PDFInfo
- Publication number
- CN211539791U CN211539791U CN201922473492.7U CN201922473492U CN211539791U CN 211539791 U CN211539791 U CN 211539791U CN 201922473492 U CN201922473492 U CN 201922473492U CN 211539791 U CN211539791 U CN 211539791U
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- China
- Prior art keywords
- extruding
- mandrel
- base
- workpiece
- friction disc
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- Expired - Fee Related
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Abstract
The differential gear-extruding device comprises a base and a mandrel longitudinally penetrating through the center of the base; the mandrel is tightly connected with the base; a friction disc is arranged above one end of the base, which is far away from the main shaft of the machine tool; a tooth extruding tray for extruding a workpiece is arranged on the upper surface of the friction disc, and the tooth extruding tray is provided with an inwards-concave inner cavity circular table for supporting and extruding the workpiece; the mandrel is also provided with a wheel extruding cutter, the wheel extruding cutter and the mandrel are connected in a key connection mode, and the wheel extruding cutter is provided with external teeth meshed with the internal teeth of the workpiece; the upper surface of the extrusion wheel cutter is provided with a nut and a compression cushion block for compressing the extrusion wheel cutter; comprises a pressure applying rod for applying radial force to the gear-extruding tray. The device has simple and compact structure, small initial investment and high processing precision; different gear-extruding trays and wheel-extruding cutters can be selected according to workpieces of different sizes, and other parts of the device can be universal, so that the device has certain expandability, the tool manufacturing cost is reduced, the tool installation time is saved, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a gear internal tooth processing field, in particular to differential crowded tooth device.
Background
At present, gear machining mainly adopts machining modes such as profiling machining, generating machining and the like. When the gear is machined by the profiling method, no gear meshing motion exists, and the machined gear is low in precision, and the precision is generally below 11 grades. When the generating method is adopted for processing, the gear cutter and the processed gear move in a gear meshing way. The tooth profile (tooth surface) of the gear to be processed is enveloped by the motion of the tooth profile blade of the gear cutter, and the processing precision is higher. However, the equipment required for common generating processes (hobbing, shaping, shaving) is complex and the initial investment costs are high. It is necessary to design a machining apparatus with a simple structure and low cost.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a differential gear-burnishing apparatus.
The utility model aims at realizing through the following technical scheme:
the differential gear-extruding device comprises a base connected with a machine tool spindle and a mandrel longitudinally penetrating through the center of the base; the mandrel is tightly connected with the base; one end of the mandrel, which is close to the main shaft of the machine tool, is connected with a nut for fastening the mandrel; a friction disc is arranged above one end, far away from the main shaft of the machine tool, of the base; a tooth extruding tray for extruding a workpiece is arranged on the upper surface of the friction disc, and the tooth extruding tray is provided with an inwards-concave inner cavity circular table for supporting and extruding the workpiece; a squeezing wheel knife for processing the tooth shape of the workpiece is arranged at the part of the mandrel extending out of the friction disc, the squeezing wheel knife is connected with the mandrel in a key connection mode, the squeezing wheel knife is provided with external teeth meshed with the internal teeth of the workpiece, and the distance between two axial end faces of the squeezing wheel knife is not greater than the distance between two axial end faces of the squeezing tooth tray; the upper surface of the extrusion wheel cutter is provided with a nut and a compression cushion block for compressing the extrusion wheel cutter; comprises a pressure applying rod for applying radial force to the gear-extruding tray.
Further, the outer surface of the part of the mandrel connected with the base is a conical surface, and the outer diameter of the part of the mandrel on the conical surface is gradually increased along the direction far away from the main shaft of the machine tool; the base is provided with an inner conical surface hole matched with the conical part of the mandrel.
Further, a bearing used for eliminating the transmission effect on the friction disc when the base rotates is arranged between the friction disc and the base.
Further, the bearing is a plane bearing.
Further, the diameter of the addendum circle of the external teeth of the wheel extruding cutter is smaller than that of the addendum circle of the internal teeth of the workpiece.
The utility model discloses a differential gear-extruding device's beneficial effect is:
the device has simple and compact structure, small initial investment and high processing precision;
different gear-extruding trays and wheel-extruding cutters can be selected according to workpieces of different sizes, and other parts of the device can be universal, so that the device has certain expandability, the tool manufacturing cost is reduced, the tool installation time is saved, and the production efficiency is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
Fig. 1 is a schematic structural diagram of the differential gear-burnishing device of the present invention, which includes a base 1 connected with a main shaft of a machine tool and a mandrel 2 longitudinally penetrating through the center of the base 1; the mandrel 2 is tightly connected with the base 1; one end of the mandrel 2 close to the main shaft of the machine tool is connected with a nut 3 for fastening the mandrel 2; a friction disc 4 is arranged above one end of the base 1 far away from the main shaft of the machine tool; a tooth extruding tray 5 for extruding a workpiece 8 is arranged on the upper surface of the friction disc 4, and the tooth extruding tray 5 is provided with an inwards-concave inner cavity circular table for supporting and extruding the workpiece 8; a squeezing wheel knife 6 for processing the tooth shape of the workpiece is arranged on the part of the mandrel 2 extending out of the friction disc 4, the squeezing wheel knife 6 is connected with the mandrel 2 in a key connection mode, the squeezing wheel knife 6 is provided with external teeth meshed with the internal teeth of the workpiece 8, and the distance between two axial end faces of the squeezing wheel knife 6 is not greater than that between two axial end faces of the tooth-squeezing tray 5; the upper surface of the extrusion wheel knife 6 is provided with a nut 10 tight cushion block 11 for pressing the extrusion wheel knife 6; including a pressure bar 7 for applying a radial force to the cogged tray 5.
Further, the outer surface of the part of the mandrel 2 connected with the base 1 is a conical surface, and the outer diameter of the mandrel 2 on the part of the conical surface is gradually increased along the direction away from the main shaft of the machine tool; the base 1 has an internal conical surface hole which mates with the conical portion of the mandrel. The outer conical surface of the mandrel 2 and the inner conical surface hole of the base 1 are matched to have two functions: accurately positioning the mandrel 2; the connection tightness of the mandrel 2 and the base 1 is improved.
Further, a bearing 9 for eliminating the transmission action on the friction disc 4 when the base 1 rotates is arranged between the friction disc 4 and the base 1.
Further, the bearing 9 is a flat bearing. The shaft ring of the plane bearing is matched and connected with the base 1, and the outer end surface of the race ring of the plane bearing is abutted against the inner surface of the friction disc 4.
Further, the addendum circle diameter of the external teeth of the extrusion wheel cutter 6 is smaller than the addendum circle diameter of the internal teeth of the workpiece 8. When the device works, the axis of the workpiece does not coincide with the axis of the extrusion wheel cutter, and partial external teeth of the extrusion wheel cutter are meshed with partial internal teeth of the workpiece, so that the resistance applied when the extrusion wheel cutter cuts teeth is reduced, and the whole device can work smoothly.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (5)
1. Differential gear-extruding device, its characterized in that: comprises a base connected with a main shaft of a machine tool and a mandrel longitudinally penetrating through the center of the base; the mandrel is tightly connected with the base; one end of the mandrel, which is close to the main shaft of the machine tool, is connected with a nut for fastening the mandrel; a friction disc is arranged above one end, far away from the main shaft of the machine tool, of the base; a tooth extruding tray for extruding a workpiece is arranged on the upper surface of the friction disc, and the tooth extruding tray is provided with an inwards-concave inner cavity circular table for supporting and extruding the workpiece; a squeezing wheel knife for processing the tooth shape of the workpiece is arranged at the part of the mandrel extending out of the friction disc, the squeezing wheel knife is connected with the mandrel in a key connection mode, the squeezing wheel knife is provided with external teeth meshed with the internal teeth of the workpiece, and the distance between two axial end faces of the squeezing wheel knife is not greater than the distance between two axial end faces of the squeezing tooth tray; the upper surface of the extrusion wheel cutter is provided with a nut and a compression cushion block for compressing the extrusion wheel cutter; comprises a pressure applying rod for applying radial force to the gear-extruding tray.
2. The differential gearing mechanism according to claim 1, characterized in that: the outer surface of the part of the mandrel connected with the base is a conical surface, and the outer diameter of the part of the mandrel on the conical surface is gradually increased along the direction far away from the main shaft of the machine tool; the base is provided with an inner conical surface hole matched with the conical part of the mandrel.
3. The differential gearing mechanism according to claim 1, characterized in that: and a bearing used for eliminating the transmission effect on the friction disc when the base rotates is arranged between the friction disc and the base.
4. The differential gearing mechanism according to claim 3, characterized in that: the bearing is a plane bearing.
5. The differential gearing mechanism according to claim 1, characterized in that: and the diameter of the addendum circle of the external teeth of the extrusion wheel cutter is smaller than that of the addendum circle of the internal teeth of the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473492.7U CN211539791U (en) | 2019-12-31 | 2019-12-31 | Differential gear-extruding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473492.7U CN211539791U (en) | 2019-12-31 | 2019-12-31 | Differential gear-extruding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211539791U true CN211539791U (en) | 2020-09-22 |
Family
ID=72512514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922473492.7U Expired - Fee Related CN211539791U (en) | 2019-12-31 | 2019-12-31 | Differential gear-extruding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211539791U (en) |
-
2019
- 2019-12-31 CN CN201922473492.7U patent/CN211539791U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 Termination date: 20211231 |